Issue

React Native version is 0.62.2, When I build in Xcode, an error occur.

ios/Pods/Headers/Private/Flipper-Folly/folly/portability/Time.h:51:17: Typedef redefinition with different types ('uint8_t' (aka 'unsigned char') vs 'enum clockid_t')

My Podfile file:

platform :ios, '10.0'
require_relative '../node_modules/@react-native-community/cli-platform-ios/native_modules'

def add_flipper_pods!(versions = {})
  versions['Flipper'] ||= '~> 0.33.1'
  versions['DoubleConversion'] ||= '1.1.7'
  versions['Flipper-Folly'] ||= '~> 2.1'
  versions['Flipper-Glog'] ||= '0.3.6'
  versions['Flipper-PeerTalk'] ||= '~> 0.0.4'
  versions['Flipper-RSocket'] ||= '~> 1.0'

  pod 'FlipperKit', versions['Flipper'], :configuration => 'Debug'
  pod 'FlipperKit/FlipperKitLayoutPlugin', versions['Flipper'], :configuration => 'Debug'
  pod 'FlipperKit/SKIOSNetworkPlugin', versions['Flipper'], :configuration => 'Debug'
  pod 'FlipperKit/FlipperKitUserDefaultsPlugin', versions['Flipper'], :configuration => 'Debug'
  pod 'FlipperKit/FlipperKitReactPlugin', versions['Flipper'], :configuration => 'Debug'

  # List all transitive dependencies for FlipperKit pods
  # to avoid them being linked in Release builds
  pod 'Flipper', versions['Flipper'], :configuration => 'Debug'
  pod 'Flipper-DoubleConversion', versions['DoubleConversion'], :configuration => 'Debug'
  pod 'Flipper-Folly', versions['Flipper-Folly'], :configuration => 'Debug'
  pod 'Flipper-Glog', versions['Flipper-Glog'], :configuration => 'Debug'
  pod 'Flipper-PeerTalk', versions['Flipper-PeerTalk'], :configuration => 'Debug'
  pod 'Flipper-RSocket', versions['Flipper-RSocket'], :configuration => 'Debug'
  pod 'FlipperKit/Core', versions['Flipper'], :configuration => 'Debug'
  pod 'FlipperKit/CppBridge', versions['Flipper'], :configuration => 'Debug'
  pod 'FlipperKit/FBCxxFollyDynamicConvert', versions['Flipper'], :configuration => 'Debug'
  pod 'FlipperKit/FBDefines', versions['Flipper'], :configuration => 'Debug'
  pod 'FlipperKit/FKPortForwarding', versions['Flipper'], :configuration => 'Debug'
  pod 'FlipperKit/FlipperKitHighlightOverlay', versions['Flipper'], :configuration => 'Debug'
  pod 'FlipperKit/FlipperKitLayoutTextSearchable', versions['Flipper'], :configuration => 'Debug'
  pod 'FlipperKit/FlipperKitNetworkPlugin', versions['Flipper'], :configuration => 'Debug'
end

# Post Install processing for Flipper
def flipper_post_install(installer)
  installer.pods_project.targets.each do |target|
    if target.name == 'YogaKit'
      target.build_configurations.each do |config|
        config.build_settings['SWIFT_VERSION'] = '4.1'
      end
    end
  end
end

target 'News' do
  # Pods for News
  pod 'FBLazyVector', :path => "../node_modules/react-native/Libraries/FBLazyVector"
  pod 'FBReactNativeSpec', :path => "../node_modules/react-native/Libraries/FBReactNativeSpec"
  pod 'RCTRequired', :path => "../node_modules/react-native/Libraries/RCTRequired"
  pod 'RCTTypeSafety', :path => "../node_modules/react-native/Libraries/TypeSafety"
  pod 'React', :path => '../node_modules/react-native/'
  pod 'React-Core', :path => '../node_modules/react-native/'
  pod 'React-CoreModules', :path => '../node_modules/react-native/React/CoreModules'
  pod 'React-Core/DevSupport', :path => '../node_modules/react-native/'
  pod 'React-RCTActionSheet', :path => '../node_modules/react-native/Libraries/ActionSheetIOS'
  pod 'React-RCTAnimation', :path => '../node_modules/react-native/Libraries/NativeAnimation'
  pod 'React-RCTBlob', :path => '../node_modules/react-native/Libraries/Blob'
  pod 'React-RCTImage', :path => '../node_modules/react-native/Libraries/Image'
  pod 'React-RCTLinking', :path => '../node_modules/react-native/Libraries/LinkingIOS'
  pod 'React-RCTNetwork', :path => '../node_modules/react-native/Libraries/Network'
  pod 'React-RCTSettings', :path => '../node_modules/react-native/Libraries/Settings'
  pod 'React-RCTText', :path => '../node_modules/react-native/Libraries/Text'
  pod 'React-RCTVibration', :path => '../node_modules/react-native/Libraries/Vibration'
  pod 'React-Core/RCTWebSocket', :path => '../node_modules/react-native/'

  pod 'React-cxxreact', :path => '../node_modules/react-native/ReactCommon/cxxreact'
  pod 'React-jsi', :path => '../node_modules/react-native/ReactCommon/jsi'
  pod 'React-jsiexecutor', :path => '../node_modules/react-native/ReactCommon/jsiexecutor'
  pod 'React-jsinspector', :path => '../node_modules/react-native/ReactCommon/jsinspector'
  pod 'ReactCommon/callinvoker', :path => "../node_modules/react-native/ReactCommon"
  pod 'ReactCommon/turbomodule/core', :path => "../node_modules/react-native/ReactCommon"
  pod 'Yoga', :path => '../node_modules/react-native/ReactCommon/yoga', :modular_headers => true

  pod 'DoubleConversion', :podspec => '../node_modules/react-native/third-party-podspecs/DoubleConversion.podspec'
  pod 'glog', :podspec => '../node_modules/react-native/third-party-podspecs/glog.podspec'
  pod 'Folly', :podspec => '../node_modules/react-native/third-party-podspecs/Folly.podspec'
  
  target 'NewsTests' do
    inherit! :search_paths
    # Pods for testing
  end

  use_native_modules!
  # Enables Flipper.
  #
  # Note that if you have use_frameworks! enabled, Flipper will not work and
  # you should disable these next few lines.
  add_flipper_pods!
  
  post_install do |installer|
    flipper_post_install(installer)
  end
end

target 'News-tvOS' do
  # Pods for News-tvOS

  target 'News-tvOSTests' do
    inherit! :search_paths
    # Pods for testing
  end
end

Solution 1

Keep the Flipper module and upgrade the Flipper-Folly version, for example to 2.3.0:

   #
   # Note that if you have use_frameworks! enabled, Flipper will not work and
   # you should disable these next few lines.
-  add_flipper_pods!
+  add_flipper_pods!('Flipper-Folly' => '2.3.0')
   post_install do |installer|
     flipper_post_install(installer)
   end

Solution 2

Delete the Flipper module. Delete or comment the following lines in the Podfile file. If the AppDelegate.m file also has related Flipper code, it also needs to be delete or comment.

#  add_flipper_pods!
#  post_install do |installer|
#    flipper_post_install(installer)
#  end

Finally re-run pod install.

cd ios && rm -rf Pods Podfile.lock && pod install